Pulls census tracts using tigris, computes tract centroids, and returns a three-column data.table with GEOID, latitude, and longitude.
Arguments
- st
Character scalar; either a 2-digit state FIPS code (for example,
"24") or a 2-letter USPS abbreviation (for example,"MD").- county
A three-digit FIPS code (string) of the county or counties to subset on. This can also be a county name or vector of names.
- use_cache
a boolean, defaults to TRUE, to set tigris option to use cache
- ...
arguments to be passed on to tigris::tracts()
Value
A data.table with columns:
- geoid
11-digit tract GEOID (
state(2) + county(3) + tract(6))- latitude
Centroid latitude in WGS84
- longitude
Centroid longitude in WGS84
Examples
md_tracts <- tract_generator("24")
md_tracts2 <- tract_generator("MD")
howard_county_tracts <- tract_generator("MD", county = "027")
head(md_tracts)
#> geoid latitude longitude
#> <char> <num> <num>
#> 1: 24013511000 39.53226 -77.09618
#> 2: 24510160600 39.29675 -76.66401
#> 3: 24510271802 39.34468 -76.67707
#> 4: 24005411309 39.41019 -76.43914
#> 5: 24005408303 39.46964 -76.71628
#> 6: 24005407002 39.67417 -76.62187